<ul class="nav nav-tabs">
    <li {if $op=='land_coupon'}class="active"{/if} >
        <a href="{url 'site/entry/coupon',array('m'=>'kundian_farm','op'=>'land_coupon','version_id'=>$_GPC['version_id'])}">土地优惠券</a>
    </li>
    <li {if $op=='seed_coupon'}class="active"{/if} >
        <a href="{url 'site/entry/coupon',array('m'=>'kundian_farm','op'=>'seed_coupon','version_id'=>$_GPC['version_id'])}">种子优惠券</a>
    </li>
</ul>